<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <meta http-equiv="Content-Type" content="text/html" >
    <title>jQuery</title>
</head>
<body id="wo">
    <button type="button"  onclick="myfunction()">请点击我</button>
    <h1 onclick="changetext(this)">点击这段文本</h1>
    <div class="testing">
        <ul class="lang">
            <li class="lang-javascript">JavaScript</li>
            <li class="lang-python">Python</li>
            <li class="lang-lua">Lua</li>
        </ul>
    </div>
    <div>
        <ul class="lang">
            <li class="js dy">JavaScript</li>
            <li class="dy">Python</li>
            <li id="swift">Swift</li>
            <li class="dy">Scheme</li>
            <li name="haskell">Haskell</li>
        </ul>
    </div>
    <div>
        <ul id="test-css">
            <li class="lang dy"><span>JavaScript</span></li>
            <li class="lang wo"><span>Java</span></li>
            <li class="lang dy"><span>Python</span></li>
            <li class="lang ni"><span>Swift</span></li>
            <li class="lang dy"><span>Scheme</span></li>
        </ul>
    </div>
    <div>
        <input id="test-input" name="email" value="">
        <select id="test-select" name="city">
            <option value="BJ" selected>Beijing</option>
            <option value="SH">Shanghai</option>
            <option value="SZ">Shenzhen</option>
        </select>
        <textarea id="test-textarea">Hello</textarea>
    </div>
    <div id="test-div">
        <ul>
            <li><span>JavaScript</span></li>
            <li><span>Python</span></li>
            <li><span>Swift</span></li>
        </ul>
    </div>
    <a id = "test-link" href="#0">点我看看</a>
    <button id="test-input" type="button">按钮</button>
</body>
<script crossorigin="anonymous" integrity="sha512-bLT0Qm9VnAYZDflyKcBaQ2gg0hSYNQrJ8RilYldYQ1FxQYoCLtUjuuRuZo+fjqhx/qtq/1itJ0C2ejDxltZVFg==" src="https://lib.baomitu.com/jquery/3.5.1/jquery.min.js"></script>
<script src="./js.js"></script>
</html>